AF122-FR-0742R2L

Resistor Networks, Arrays

Resistor networks and arrays are devices that commonly perform one of two functions: filtering and attenuation. Filter networks are made up of resistors, capacitors and inductors. The arrangement of these components is used to pass signals with certain characteristics from one point to another while blocking undesired signals. Attenuator networks are made up of simple resistors arranged so that the voltage from one to node another node is lowered or “attenuated”. Both filter networks and attenuator networks can have a variety of applications and have become commonplace in circuits with today’s technology.

AF122-FR-0742R2L Application Field and Working Principle

The AF122-FR-0742R2L is a four position 12-pin surface mountable resistor array device. It consists of two types of resistor chips; one containing two resistors each and the other containing four resistors each. This device is designed for applications which require custom attenuation. The components are arranged such that the voltage at one end is lowered at the other. The amount of voltage drop depends on the address pins A0, A1, and A2. The A0 pin is used to select one of the chips, while the A1 and A2 pins are used to select which of the four resistors will be connected.

The AF122-FR-0742R2L is a versatile device, which makes it very useful in situations where customized attenuation is needed. It can be used in a variety of applications, such as audio or video signal lines. The application where it can be used most effectively is in RF receivers or transmitters. This application can use either single or multiple resistor chips as ATV, UHF, VHF, DTV receivers or transmitters require a combination of specific attenuation values.

The AF122-FR-0742R2L also provides flexibility as it can be used to create a variety of attenuation levels, from 0dB to -6dB, in 1dB increments. This is accomplished by varying the voltage on the address pins A0, A1, and A2. The voltage applied to these pins will determine which of the four resistors will be connected. By setting the appropriate voltage and selecting the specific resistor, the desired attenuation level can be achieved.

The AF122-FR-0742R2L offers a quick and easy way to provide custom attenuation for a variety of receiver and transmitter applications. By combining flexibility and easy application, this device makes it simple to provide custom attenuation, allowing users to get the most out of their receiver or transmitter designs.